TROMBONE SHORTY & ORLEANS AVENUE: SUNDAY, MAY 7—ACURA STAGE, 5:35 P.M.

Over the past half-century the New Orleans Jazz and Heritage Festival has defined what it means to be New Orleans in a manner rivaled only by Mardi Gras itself. The event has spawned a music festival culture in the city, both with its spinoffs and its imitators, that now runs more or less year-round. Though it’s grown in the...